According to R-Patz, the secret to his success with the ladies is his hair!

Biebs, 17, spilled the details of when he chatted with R-Patz, 24, at a party.

“One day Robert Pattinson came up to me at a party and said, ‘For whatever reason, people love our hair and it’s always a great ice-breaker with girls,'” Justin tells The People. “He is like, ‘Hey my name’s Robert. Want to touch my hair?’ I thought he was joking, but it really works.”